Koki Niwa
Association : Japan
Gender : Male
Birthday : 19 October 1994
Playing Hand : Left-handed
Playing Style : Attacker
Grip : Shakehand
Two time 2010 Youth Games gold medalist and two time World Junior Table Tennis Champion Koki Niwa has translated his junior success into adult success as well. He won a team silver at the 2016 Rio Olympics. He achieved his highest world ranking of 5th in December 2017.